package reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import reggie.common.R;
import reggie.entity.Employee;
import reggie.service.EmployeeService;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.time.LocalDateTime;


@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")

    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1.密码加密
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2.查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        //3.查询用户
        if (emp == null) {
            return R.error("用户错误");
        }
        //4.密码比对
        if (!emp.getPassword().equals(password)) {
            return R.error("密码错误");
        }
        //5.查员工状态
        if (emp.getStatus() == 0) {
            return R.error("账号禁用");
        }
        //6.登录成功
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        //设置初始密码
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //获取当前用户登录id
        Long empId = (Long) request.getSession().getAttribute("employee");
        //employee.setCreateUser(empId);
        //employee.setUpdateUser(empId);
        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name) {
        //1.构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //2.条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getUsername,name);
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据员工id修改信息
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee) {
        employee.setUpdateTime(LocalDateTime.now());
        //Long empId=(Long)request.getSession().getAttribute("employee");
       // employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工修改信息成功");
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id) {
        Employee employee = employeeService.getById(id);
        if (employee != null) {
            return R.success(employee);
        }
       return R.error("没有查询到员工信息");
    }


}
